Cleanup standards and field guidance
for environmental professionals.
Currently covering Ohio, Indiana, and national programs - with more states on the way. Every value cited to its primary regulatory source and verification-dated.
Why SiteRef?
State agency cleanup standards are buried across dozens of PDFs, scattered database tools, and rule appendices that change without notice. SiteRef pulls them into one place - cited to OAC rules, IDEM Published Level tables, and CIDARS dates - so you can find the value you need without an hour of setup work.
Quick Start
Ohio
VAP, BUSTR, and DERR cleanup programs. CIDARS standards for soil, groundwater, and air.
Indiana
VRP, SCP, LUST, and Brownfields programs. IDEM R2 published levels for all media.
Latest Updates
Ohio PFAS Standards - Drinking Water & Groundwater Action Levels Verified Jun 26, 2026 Key EPA RSL Values from the November 2024 Tables - A Field Reference Updated Jun 26, 2026 PFAS Drinking Water Standards - Where Things Stand in 2026 Updated Jun 26, 2026 How to Read IDEM Published Levels Tables - A Practical Guide Published Jun 25, 2026 EPA Hazardous Waste Combustor NESHAP Review - No Changes to Current Standards Published Jun 7, 2026 EPA Proposes Ohio Air Nuisance Rule Removal - SIP Change for Adequate Controls Published Jun 7, 2026 EPA Proposes PFAS MCL Compliance Extension to 2031 - Two-Year Delay for Water Systems Published May 24, 2026 EPA Proposes to Rescind PFAS Drinking Water Rules for Four Substances - PFHxS, PFNA, GenX, and PFBS Mix Published May 24, 2026